
Sad Cypress
Sad Cypress (Hercule Poirot, 21) Agatha Christie. William Morrow Paperbacks (ISBN: 9780063376151) 2025, first published 1940.
Summary: Elinor Carlisle is on trial for poisoning Mary Gerrard and will go to her death unless Poirot can show that someone else did it.
Elinor Carlisle is standing in the dock, charged with the murder by poisoning of Mary Gerrard, her lodgekeeper’s daughter. She pleads not guilty but the preponderance of evidence weighs against her. But the family physician has hired Hercule Poirot to investigate, and to find evidence that will exonerate her.
The back story, which Christie proceeds to tell is that Elinor Carlisle and Roddy Welman, are engaged to marry. Elinor is the niece of Laura Welman, whose health is failing. Roddy is Mrs. Welman’s deceased husband’s nephew. The two grew up in frequent contact, a relationship which had grown into love, at least for Elinor. Mrs Welman had always wanted this marriage. Both Roddy and Elinor had been living in London when an anonymous note is delivered to Elinor, warning of someone stealing the affections of Mrs. Welman in her illness.
When Mrs Welman has a stroke, they visit. Elinor finds Mary Gerrard, the lodgekeeper’s daughter has been keeping Mrs Welman company and helping the nurses care for her. For some reason, Mrs. Welman had taken an interest in Mary, and had paid for her education, including a finishing school in Paris. Mary is modest, and simply professes gratitude for the treatment she has received. And Mrs. Welman appreciates the company.
All may have been well and good were it not for a chance encounter between Roddy and Mary. He is immediately smitten, though Mary discourages him. Elinor sees this and it leads to the breaking of their engagement. Even then, when Roddy presses his suit, Mary discourages him. But Elinor is secretly heartbroken, and jealous of Roddy’s attentions to Mary.
Mrs. Welman, who detests being bedridden, has a second stroke. Despite surviving and improving, she dies overnight. About this time, nurse Hopkins mentions a missing vial of morphine fromn her bag to the other nurse. But there is no reason to see the death as having been from other than natural causes.
When Elinor meets with the solicitor, she learns Mrs Welman had died intestate, and that she has inherited the estate. Nothing goes to Roddy. Mrs. Welman had been distraught the night before she died and wanted her solicitor to make a provision for Mary, something she had been unable to do. Elinor settled £2000 on Mary. And she decided to sell the manor, asking Mary to clean out the lodgekeepers residence.
Meanwhile, Elinor wrapped up matters at the main house and made sandwiches from supplies she had picked up at the grocer, more than she could eat. So, she went down and invited Mary and nurse Hopkins to join her. When they sat down, she served Mary first, who took the top sandwich. Afterward, nurse Hopkins made tea that she and Mary drank. Then nurse Hopkins and Elinor went upstairs to look through some things. When they finally came down, they found Mary breathing with difficulty. Despite the doctor’s efforts, she died.
They found a lethal dose of morphine in her stomach. Since both Mary and nurse Hopkins drank the tea, the focus was on the sandwich she ate. Then a scrap of paper with the word “morphine” was found in the floorboard where Elinor had prepared the sandwiches.
It doesn’t appear anyone else but Elinor could have done it. She had motive, means (the missing morphine vial) and opportunity. But she maintained her innocence (even as she imagined she could have done it). And Dr. Lord believes her and seeks Poirot’s help. But will he find evidence that points elsewhere when the preponderance points at Elinor? Or will she go to the gallows?
In the end it comes down hidden secrets and small mistakes, things Poirot is skilled at ferreting out. But Christie made the evidence against Elinor seem so convincing that I wondered how Poirot could prove otherwise. And that’s what kept me glued to the story to the end.




